Calculate opportunity scores for keywords based on difficulty, popularity, and competition
AI agents call calculate_keyword_opportunity to retrieve information from Astro MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool performs analysis and calculation on App Store Optimization data to generate scores and insights. This is a read operation—it retrieves/processes existing data to produce analytical output with no side effects, no data modification, no external command execution, and no financial transactions.
From the tool's definition Tool name and description indicate it 'calculates opportunity scores' based on existing metrics (difficulty, popularity, competition).
Documented attack patterns abuse exactly the kind of access calculate_keyword_opportunity gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Astro MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for calculate_keyword_opportunity:
{
"version": "1",
"default": "deny",
"tools": {
"calculate_keyword_opportunity": {}
}
}calculate_keyword_opportunity is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Calculate opportunity scores for keywords based on difficulty, popularity, and competition. It is categorised as a Read tool in the Astro MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Astro MCP Server MCP server in PolicyLayer and add a rule for calculate_keyword_opportunity: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Astro MCP Server. Nothing to install.
calculate_keyword_opportunity is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the calculate_keyword_opportunity rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for calculate_keyword_opportunity. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
calculate_keyword_opportunity is provided by the Astro MCP Server MCP server (timbroddin/astro-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Astro MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
15 Astro MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.